Hermetica Superfood Encyclopedia
The Short Answer
Squalene is a triterpene compound that serves as a cholesterol precursor and powerful antioxidant, naturally found in shark liver oil and olive oil. It enhances skin barrier function through ceramide synthesis and supports cardiovascular health by modulating cholesterol metabolism via the mevalonate pathway.
CategoryMarine Bioactive
GroupCompound
Evidence LevelModerate
Primary Keywordsqualene benefits
Synergy Pairings5
Squalene (Shark Liver / Olive) — botanical close-up
Health Benefits
Enhances skin health by providing antioxidants, reducing oxidative stress and promoting a radiant complexion. - Supports heart health by lowering LDL cholesterol, reducing cardiovascular disease risk. - Boosts immune function by enhancing white blood cell activity, improving pathogen defense. - Promotes joint lubrication by increasing synovial fluid production, enhancing mobility. - Supports liver health by aiding in detoxification processes, improving metabolic efficiency. - Improves energy levels by enhancing mitochondrial function, reducing fatigue. - Supports brain health by protecting neurons, improving cognitive function and memory.
Origin & History
Natural habitat
Squalene is a natural organic compound originally sourced from shark liver oil but now also extracted from olives and other plant sources for sustainability.
“Squalene has been used in traditional medicine, particularly in Japan, where it is believed to promote health and longevity.”Traditional Medicine
Scientific Research
Research supports squalene's role as an emollient and antioxidant, with studies indicating its efficacy in skin hydration and protection.
Preparation & Dosage
Traditional preparation
The recommended oral dosage is 500 mg to 1,000 mg per day. Consult a healthcare provider before use.
Nutritional Profile
Squalene is a triterpene hydrocarbon (C30H50) and polyunsaturated lipid, not a traditional macronutrient source. Key compositional data: Pure squalene is 100% lipid by weight with no protein, carbohydrate, fiber, or micronutrient content in isolated form. Bioactive compounds: Squalene itself is the primary bioactive at ~100% concentration in refined extract. In shark liver oil, squalene concentrations range from 40–80% of total oil content, alongside alkylglycerols (1–10%) and fatty acids including oleic acid (C18:1), palmitic acid (C16:0), and trace omega-3 fatty acids (EPA, DHA <5%). In olive oil, squalene is present at 200–700 mg per 100g (approximately 0.2–0.7%), alongside oleocanthal, oleuropein, tocopherols (vitamin E: ~14mg/100g), and polyphenols. Molecular weight of squalene: 410.72 g/mol. As an antioxidant precursor, squalene is an intermediate in cholesterol and sterol biosynthesis (via the mevalonate pathway), converting to squalene epoxide. Bioavailability: Orally administered squalene demonstrates approximately 60–70% intestinal absorption in human studies; it is incorporated into chylomicrons and lipoproteins (primarily VLDL and LDL fractions) post-absorption. Skin absorption is high due to squalene being a natural component of human sebum (approximately 12–15% of sebum composition). No significant vitamin, mineral, or fiber content is present in isolated squalene compound form.
How It Works
Mechanism of Action
Squalene functions as an intermediate in the cholesterol biosynthesis pathway, converting to squalene epoxide via squalene epoxidase enzyme. It enhances skin barrier function by promoting ceramide and cholesterol synthesis in keratinocytes. The compound also exhibits antioxidant properties by scavenging free radicals and reducing lipid peroxidation through its unsaturated carbon structure.
Clinical Evidence
Human studies on squalene supplementation are limited, with most research focusing on topical applications. A 12-week study of 30 participants showed 23% improvement in skin hydration with topical squalene application. Cardiovascular studies primarily involve observational data linking dietary squalene intake to improved lipid profiles. Most immune function research comes from in vitro and animal studies, with human clinical evidence remaining preliminary.
Safety & Interactions
Squalene is generally well-tolerated with minimal reported side effects when used topically or consumed in normal dietary amounts. Shark-derived squalene may pose sustainability concerns, making plant-based alternatives preferable. High-dose supplementation may theoretically interact with statin medications due to cholesterol pathway involvement. Pregnancy and breastfeeding safety data is limited, requiring medical consultation before use.
Synergy Stack
Hermetica Formulation Heuristic
Also Known As
C30H50Shark liver oilOlive squaleneDeep sea liver oilSpinaceneAll-trans-squaleneLiver oil extract
Frequently Asked Questions
What is the difference between shark and olive squalene?
Both shark liver and olive-derived squalene have identical molecular structures and biological activities. Olive squalene is considered more sustainable and ethical, while shark squalene historically provided higher concentrations but raises conservation concerns.
How much squalene should I take daily?
No standardized dosage exists for squalene supplements, as most research involves topical application. Dietary intake from natural sources typically ranges 30-400mg daily. Consult healthcare providers before supplementing, especially above normal dietary levels.
Can squalene help with acne and skin problems?
Squalene may benefit acne-prone skin by restoring natural sebum balance without clogging pores, as it mimics skin's natural oils. Its anti-inflammatory and barrier-repairing properties can help reduce irritation and improve overall skin texture.
Does squalene actually lower cholesterol levels?
Squalene's role in cholesterol metabolism is complex, as it serves as a cholesterol precursor rather than directly lowering levels. Some studies suggest it may help optimize cholesterol ratios, but evidence for significant cholesterol reduction remains limited.
Is squalene safe to use with other supplements?
Squalene generally has low interaction potential with most supplements due to its natural occurrence in the body. However, it may theoretically interact with high-dose vitamin E or other fat-soluble compounds, requiring spacing of administration times.
Does squalene interact with blood thinners or anticoagulant medications?
Squalene may have mild anticoagulant properties and could theoretically potentiate blood thinners like warfarin or aspirin, though clinical evidence is limited. If you take prescription anticoagulants or antiplatelet medications, consult your healthcare provider before adding squalene to avoid increased bleeding risk. Most people taking these medications can use squalene safely with proper medical supervision and monitoring.
What is the difference between squalene absorption with food versus on an empty stomach?
Squalene is a lipophilic (fat-soluble) compound that absorbs significantly better when taken with a meal containing dietary fat, as fat enhances its bioavailability. Taking squalene on an empty stomach results in poor absorption and reduces its effectiveness for cardiovascular and skin health benefits. For optimal results, consume squalene supplements with a meal containing healthy fats like olive oil, nuts, or fatty fish.
Is squalene safe for pregnant women or nursing mothers?
There is insufficient clinical research on squalene safety during pregnancy and lactation, so it is generally recommended to avoid supplementation during these periods as a precaution. While squalene is naturally present in human tissues, the safety profile of concentrated supplemental doses in pregnant or nursing women has not been adequately studied. Pregnant or breastfeeding women should consult their obstetrician or midwife before using squalene supplements.
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